Apparatus for combining wool, cotton and man-made fiber yarns with stretchable nylonyarn



Oct. 7, 1958 C. W. HARRIS ETAL APPARATUS FOR COMBINING WOOL, COTTON AND MAN-MADE FIBER YARNS WITH STRETCHABLE NYLON 'YARN Filed Dec. 27, 1955 Fig./

ar/ W. Harris Ernest 6. Hes/er IN V EN TORS.

United States Patent On APPARATUS FOR COMBINING WOOL, COT- TON AND MAN-MADE FIBER YARNS WITH STRETCHABLE NYLON YARN Carl W. Harris and Ernest G. Hester, McMinnville,

Tenn., assignors to Rockford Textile Mills, Inc., Mc- Minnville, Tenn., a corporation of Tennessee Application December 27, 1355, Serial No. 555,558

3 Claims. (Cl. 57-5) This invention generally relates to yarns and more specifically provides an apparatus for combining wool, cotton or any of the man-made fiber yarns with stretchable nylon yarn for producing a finished yarn which may be used in making any type of knitted or woven fabrics.

An object of the present invention is to provide an apparatus for combining stretchable nylon yarn with any wool, cotton or man-made yarns wherein the stretchable yarn is actually stretched or tensioned a predetermined amount during the combining process.

A further object of the present invention is to provide an improved apparatus for carrying out the previously mentioned culmination wherein the supply of the yarns will be such that it will be free running and substantially kink-free.

Other objects of the present invention will reside in the provision of an apparatus which is efiicient and eifective for its purposes employing a relatively inexpensive apparatus.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawing forming a part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a schematic side elevational view with portions in section illustrating the apparatus for combining the yarns; and

Figure 2 is an enlarged detailed view illustrating the finished yarn.

Referring now specifically to the drawing, it will be seen that a suitable spinning frame is generally designated by the numeral and may be of any suitable construction. Supported on the frame 10 is a cone of stretch nylon yarn 12 with the stretchable nylon yarn 14 extending substantially vertically upwardly therefrom and over a horizontally disposed wooden bar 16 which is covered with cloth which is preferably corduroy as designated by the numeral 18. The nylon stretch yarn 14 then extends vertically downwardly from the leading edge of the bar 16 and is extended through a metal eye 26 which is located ahead of and in the same plane as a pair of back drawing rolls 22 supported by suitable brackets 24. A suitable guide 26 may be provided for the rolls 22 wherein the yarn 14 will be accurately guided into the nip of the pair of rolls 22.

A cone 28 of wool yarn 30 is also supported on the frame 10 and the yarn 30 extends upwardly over a smooth round metal rod 32 and then substantially downwardly for entry into a twister head 34. The twister 'head 34 also receives the stretchable nylon yarn 14 from the back drawing rolls 22.

In orientation, the cone 28 of wool yarn 30 is disposed between the drawing rolls 22 and the twister head 34 with the metal rod 32 being disposed substantially between the vertical line of the twister head 34 and the cone 28. Preferably, the metal rod 32 is approximately three-quarters to one inch 2,854,812 C6 -Patented Oct. 7, 1958 in diameter and approximately thirtyinches above the delivery drawing rolls 36 which are disposed directly below and in vertical alignment with the twister head 34. In this device, the twister head 34 remains stationary and is not used as a twister and is located directly above the nip of the drawing rolls 36. The delivery drawing rolls 36 have a surface speed which is greater than the surface speed of the drawing rolls 22 which will place a draft or tension on the stretch nylon yarn 14 as it passes through from the drawing rolls 22 to the delivery drawing rolls 36. The wooden bar 16 is approximately two inches in width and mounted approximately eighteen inches above and slightly ahead of the drawing rolls 22 and the bar 16 may be covered with corduroy 18 or felt.

The joined yarns are threaded down through the twister head to the nip of the drawing rolls 36 and the joining of the wool yarn 30 with the nylon yarn 14 takes place as the yarns enter the twister head 34. After the joined yarns 30 and 14 pass through the drawing rolls 36, they extend through a horizontally disposed guide ring 38 which is constructed of porcelain and supported by a suitable bracket 40 and is substantially three inches in diameter. From the porcelain guide ring 38, the joined yarns 14 and 30 are threaded through the ring traveler 42 and around the yarn spinning bobbin 44 and two and one-half turns of twist are put into each inch of the combined wool and stretchable nylon yarns and the twisted yarn may then be wound onto cones under maximum tension and is then ready to use in making any knitted or woven fabrics.

The above mentioned dimensions are for wool yarn of 55 grain per 50 yards and 200 S2 denier stretch nylon to produce a grain per 50 yard stretchable wool and nylon yarn. For other types of yarns including other size and weights of wool, cotton and man-made fibers with stretch nylon yarn of dilferent size, the same apparatus may be provided except that the twist multiples and the draft ratio between the delivery rolls 36 and back rolls 22 may be changed. In the above mentioned example, the ratio of .07 exists with the surface speed of the back drawing rolls being slower than the surface speed of the delivery drawing rolls.

From the foregoing, the construction and operation of the device will be readily understood and further explanation is believed to be unnecessary. However, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within'the scope of the invention as claimed.

What is claimed as new is as follows:

1. An apparatus for combining a stretchable nylon yarn with wool, cotton or man-made fiber yarns comprising a supply cone of stretch nylon yarn, a supply cone of wool yarn, a bar above each cone for straightening the yarn as it leaves the cone, a pair of back rolls receiving the nylon yarn, a guide ring for feeding the nylon yarn into the nip of the back rolls, a twister head receiving and joining the yarns, a pair of delivery rolls receiving said joined yarn from the twister head and having a higher surface speed than the back rolls for stretching the nylon yarn a predetermined amount, a guide ring for receiving the joined yarn from the delivery rolls, a bobbin, and a ring travelerfor winding the joined yarn on the bobbin and twisting the joined yarn a predetermined number of twists.

2. The combination of claim 1 wherein the bar for the nylon yarn is wooden and covered with corduroy cloth material for increasing the frictional drag on the yarn for removing all kinks therefrom.

3 3. The combination of claim 2 wherein said guide 2,036,778 ring is constructed of porcelain and is disposed between 2,076,270 the ring traveler and the delivery rolls. 2,210,884 2,526,523 References Cited in the file of this patent 5 2,552,210

UNlTED STATES PATENTS 1,516,576 Pease Nov. 25, 1924 Schenck Apr. 7, 1936 Harris Apr. 6, 1937 Chittenden et al. Aug. 13, 1940 Weiss Oct. 17, 1950 Parker May 8, 1951 

1. AN APPARATUS FOR COMBINING A STRETCHABLE NYLON YARN WITH WOOL, COTTON OR MAN-MADE FIBER YARNS COMPRISING A SUPPLY CONE OF STRETCH NYLON YARN, A SUPPLY CONE OF WOOL YARN, A BAR ABOVE EACH CONE FOR STRAIGHTENING THE YARN AS IT LEAVES THE CONE, A PAIR OF BACK ROLLS RECEVING THE NYLON YARN, A GUIDE RING FOR FEEDING THE NYLON YARN INTO THE NIP OF THE BACK ROLLS, A TWISTER HEAD RECEIVING AND JOINING THE YARNS, A PAIR OF DELVERY ROLLS RECEIVING SAID JOINED YARN FROM THE TWISTER HEAD AND HAVING A HIGHER SURFACE SPEED THAN THE BACK ROLLS FOR STRETCHING THE NYLON YARN PREDETERMINED AMOUNT, A GUIDE RING FOR RECEIVING THE JOINED YARN FROM THE DELIVERY ROLLS, A BOBBIN, AND A RING TRAVELER FOR WINDING THE JOINED YARN ON THE BOBBIN AND TWISTING THE JOINED YARN A PREDETERMINED NUMBER OF TWISTS. 